Biến các câu sau thành câu sử dụng used to hoặc didn't used to:
- My father was a football player.
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- Mary didn't do her housework went she was a child.
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- Lucy often play the video games with her best friend but now she didn't.
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- Nam didn't drink soda when he was a student.
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- In the corner of the room was had a lot of dust.
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My father used to be a football player.
Mary didn't use to do her housework when she was a child.
Lucy often used to play the video games with her best friend but nơ she didn't.
Nam didn't use to drink soda when he was a student.
In the corner of the room used to be had a lot of dust.
HT
\(\text{My father was a football player}.\)
\(\Rightarrow\text{My father used to be a football player.}\)
\(\text{Mary didn't do her housework went she was a child.}\)
\(\Rightarrow\text{Mary didn't use to do her housework when she wass a child.}\)
\(\text{Lucy often play the video games with hes best friend but now she didn't.}\)
\(\Rightarrow\text{Lucy often used to play the video games with her best friend but no she didn't.}\)
\(\text{Nam didn't drink soda when he was a student.}\)
\(\Rightarrow\text{Nam didn't use to drink soda when he was a student.}\)
\(\text{In the corner of the room was had a lot of dust.}\)
\(\Rightarrow\text{In the corner of the room used to be had a lot of dust.}\)